Finding the Fourth Proportional to 756,019.80, 1,043,307.31 and 416,488.05

Step by Step Solution

1. Step 1: Write the proportion equation
   756,019.80 : 1,043,307.31 = 416,488.05 : x
2. Step 2: Convert to fraction form
   756,019.80/1,043,307.31 = 416,488.05/x
3. Step 3: Cross multiply
   756,019.80x = 1,043,307.31 × 416,488.05
4. Step 4: Simplify right side
   756,019.80x = 434,525,027,092.65
5. Step 5: Solve for x
   x = 434,525,027,092.65/756,019.80
6. Step 6: Final answer
   x = 574,753.50